diff --git a/src/proto/channel.pro b/src/proto/channel.pro
index 553fb54..610a135 100644
--- a/src/proto/channel.pro
+++ b/src/proto/channel.pro
@@ -11,29 +11,30 @@
 void channel_set_pipes(channel_T *channel, sock_T in, sock_T out, sock_T err);
 void channel_set_job(channel_T *channel, job_T *job);
 void channel_set_options(channel_T *channel, jobopt_T *options);
-void channel_set_req_callback(channel_T *channel, char_u *callback, int id);
-char_u *channel_get(channel_T *channel);
-int channel_collapse(channel_T *channel);
+void channel_set_req_callback(channel_T *channel, int part, char_u *callback, int id);
+char_u *channel_get(channel_T *channel, int part);
+int channel_collapse(channel_T *channel, int part);
 int channel_can_write_to(channel_T *channel);
 int channel_is_open(channel_T *channel);
 char *channel_status(channel_T *channel);
 void channel_close(channel_T *channel);
-int channel_save(channel_T *channel, char_u *buf, int len);
-char_u *channel_peek(channel_T *channel);
+char_u *channel_peek(channel_T *channel, int part);
 void channel_clear(channel_T *channel);
 void channel_free_all(void);
 int channel_get_id(void);
-void channel_read(channel_T *channel, int which, char *func);
-char_u *channel_read_block(channel_T *channel);
-int channel_read_json_block(channel_T *channel, int id, typval_T **rettv);
-channel_T *channel_fd2channel(sock_T fd, int *whichp);
+void channel_read(channel_T *channel, int part, char *func);
+char_u *channel_read_block(channel_T *channel, int part);
+int channel_read_json_block(channel_T *channel, int part, int id, typval_T **rettv);
+channel_T *channel_fd2channel(sock_T fd, int *part);
 void channel_handle_events(void);
-int channel_send(channel_T *channel, char_u *buf, char *fun);
+int channel_send(channel_T *channel, int part, char_u *buf, char *fun);
 int channel_poll_setup(int nfd_in, void *fds_in);
 int channel_poll_check(int ret_in, void *fds_in);
 int channel_select_setup(int maxfd_in, void *rfds_in);
 int channel_select_check(int ret_in, void *rfds_in);
 int channel_parse_messages(void);
 int set_ref_in_channel(int copyID);
-ch_mode_T channel_get_mode(channel_T *channel);
+int channel_part_send(channel_T *channel);
+int channel_part_read(channel_T *channel);
+ch_mode_T channel_get_mode(channel_T *channel, int part);
 /* vim: set ft=c : */